opencv failed to solve the problem ippicv_2019_lnx_intel64_general_20180723.tgz ippicv download offline download
1. Reinstall cmake
Reinstall cmake it supports https
Solution:
sudo apt-get install libcurl4-openssl-dev
./bootstrap --system-curl
make
sudo make install
Method 2. Go directly to the official gayhub download
Manual download ippicv_2019_lnx_intel64_general_20180723.tgz
Or Baidu network disk
Link: https: //pan.baidu.com/s/16afQkmJ0Hu9BenxmJy_1cQ extraction code: Uy22
Solution:
https://github.com/opencv/opencv_3rdparty/tree/ippicv/master_20180723/ippicv
Download path may be placed in the default ~ / DownLoad /
Modify the configuration file in opencv
Open the terminal input
gedit ~/DownLoad/opencv_source/opencv/3rdparty/ippicv/ippicv.cmake
“https://raw.githubusercontent.com/opencv/opencv_3rdparty/${IPPICV_COMMIT}ippicv/”
Instead of manually download the local path of the file (that is, network download mode to local files download mode):
"File: ~ / Downloads /" # (for reference only, fill in according to their own path)
Re-cmake
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local …
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local …
Will be automatically downloaded from the local time to download ippicv that step